Specifications-500R - Mercury Racing 500R Operation And Maintenance Manual

Specifications—500R
ENGINE OPERATION AND PERFORMANCE SPECIFICATIONS
Refer to the following tables for engine operation and performance
specifications. This information will help set up a new boat for maximum
performance and reliability, and provide information about certain operating
conditions that may reduce performance.
Engine Performance
Wide‑open throttle
(WOT) engine RPM
range
Peak power RPM range
Peak torque
Block Water Pressure at WOT (6000–6600 RPM)
Nominal
Marginal high pressure
Marginal low pressure (refer to
IMPORTANT remark following
this table)
Critical high pressure
IMPORTANT: Marginal low water pressure can cause the exhaust gas
temperature (EGT) and intake air temperature (IAT) to rise, causing Engine
Guardian to limit engine power during hot ambient temperature conditions. EGT
or IAT readings that are too high will sound the warning horn and display a
message on the VesselView display (if installed).
Critical low water pressure can cause the exhaust gas temperature (EGT) and
intake air temperature (IAT) to rise, causing Engine Guardian to limit engine
power during normal ambient temperature conditions. EGT or IAT readings
that are too high will sound the warning horn and display a message on the
VesselView display (if installed).
IMPORTANT: Water pressure above the critical high pressure limit will sound
the warning horn and display a message on the VesselView display (if
installed). It will also cause Engine Guardian to limit engine power to prevent
damage to the cooling system. If the water pressure is consistently high, a
pressure relief valve kit should be installed.
Block Water Temperature
Thermostat opening
Nominal operating temperature
Marginal operating temperature
(hot)
eng
GENERAL INFORMATION
6000–6600 RPM
6400–6600 RPM
4250 RPM
150–200 kPa (21.8–29.0 psi)
200–250 kPa (29.0–36.3 psi)
125–150 kPa (18.1–21.8 psi)
More than 300 kPa (43.5 psi)
71.1 °C (160 °F)
67–76 °C (152.6–168.8 °F)
77–80 °C (170.6–176 °F)
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